Alarm-sounding device.



' E. Aa ALARM sommms Dmoz.

v APPLICATION FILED AFB. 29, N11. I

P:Fvmmdy Aug. 13,1912.

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wif/1158853 Cit RUDOLH ARTHUR GASSE-L,

A www" Application filed April 29,

To all/whom t may concern.'

Bc it known that. l., RunoLrH iirrn'in Gasen, a citizen ot the United States, and a resident ot Seattle, in the county of King and State et lllashington, have invented a new and Imi'iroved i'larm-Sounding 'i/evicc, et which `the followingl is a tall, clear, and exact. description.

M v invention relates to alarm soumling, devices, and it has for its object to provide a simple and inexpensive device which will in all cases sound an alarm when the pressure communicatiirg` therewith falls below or rises above predetermined points, the device being so constructed that the alarm may be sounded at anyv points desired relatively to the device.

itnother object ofthe invention to pro- `vide in connection with the said device, means to aiterd communication with the ats mosphere to reduce the pressure when the pressure reaches a point where the alarm is sounded.

,Still other objects pt the invention will appear in the tollowing complete speciic.. tion. in which the preferred torni ot my Iinvention disclosed.

in the drawings similar characters ot reference indicate Correspending` parts in both the view?, in whicli- Figure lt is a side sectional elevation of the invention, showing how it is connected with the boiler; and Fig. 2 is a view showing a modified torni ot the alarm.

By reterriiugA to the drawings it will be seen that a tl-shapetl pipe 5 is provided having' terminals G and 7, the terminal. G being (,:onneeteifl with the top of a boiler 8 by means ot a pipe 9, and the terminal 7 being connected to the bottoni et the boiler by means et the pipo l0. The terminals 6 and Y are commanded by valves 1l and l2, and therel is also a check valve 13 at one side ot the said valve 12. A pipe lll is connected with the pipe in close proximity to the ter minal 6, this pipe 14; leading to a cylinder la, in which a piston 16 is adapted to move. The cylinder l5 has a head 17 with an opening 18, a collar 19 being connected with the said head 17 at the opening 18. Secured to the said piston 16 there is a spindle 20, which is insulated trom the `said piston 16 by the insulating member 21. AJ contact member 2Q is secured to an insulatingJ member which, in turn, is secured to the outer Specification of Letters Ea'tent.

1911i.. Serial No. 624,015.

Th e

side et the collar tl. collar 19 at. one side lhas an upwardly projecting Contact point 2st, disposed opposite to the Contact member contact. member is secured to and is carried b v the spindle 2t), this contact member being' adapted to connect electricall)1 the contact member Q2 with the contact point 9A. fr iiange QG is secured to the spindle 20, and on this liange 26 are disposed one or more weights 27. it the side ot' the pipe lll there is another pipe 28 which connects with the pipe 5, and atlords communication between the pipe :5 and the valve chamber il valve member 30 is disposed in thisvalve ehamber 2Q, and is pressed against the head ill. et the said valve chan'ihrr by a spring 32. the said spring being engaged b v a. head mounted on screw Si, which meshes in the threaded oritice in the head Se ci the. valve chamber Q9.

At one side of the valve chamber here an outlet pipe 37, which is bent upwardly, an inverted cup memlgier 3S being' (.lisposetL en the open upper terminal oit this pipe tl?. The inverted cup men'iber 3S acts as a contact member, and is adapted to a Contact member of), secured to a standard fl-O, inounted on the pipe 5, which serves as a ground. The inverted.cup member 38 is comiccted with a bell sil. by means of an electrical conductor ft2, the l' A.ll 4l. being` coi'inectcd "ith a lnitterj,1 1 by means oit electrical conductors .nd the .iid batter)7 being connected with the pipe, which serves as a ground, by an electrical conductor liti. The contact. member is connected with a bell 'l-T, by means et an electrical conductor e8, the bell El boing` cennccted with the batt 1.5' means of a wire 49, and the wire ie contact peint 24 is `groundeth as `will be reaciljv understood.

it will therefore be seen that when a sut'ticient number ot weights 2T have been disposed on the flange t3, they wiil hold the spindle 20 and the pis ,in t6 down until the pressure in the pipe :3 becomes great enough te l'k the said weigh Y the piston lt, andthe `)nulle Ztl. lt will therefore be secu that'. should at. any time the pressure in the boiler 8, which communi- Cates at all times with t`l e pipe 5, tall below a given point, the piston ttl will fall. carrving with it, the spindle 5J), and the Contact vtrical conductor 46. Should the member 25, thereby closing a circuit formed by the electrical conductors 45 and 49, the bell et?, the electrical conductor 48, the contact member 22, the contact member 25, the contact point 24, the ground, and the elecressure in the boiler rise above a predetermined point, withoutin any Way operating on the piston 16, it will raise the valve member 30, against the pressure of the spring 32, thereby per mitting the steam to pass through the valve chamber 29 to the pipe 37, to its upper terminal, Where it will pass upwardly to the inverted cup member 38, which serves as a contact member. lVhen this inverted cup member 38 strikes against the contact mem ber 39, the following circuit will be closed; the electrical conductors 4:5 and L14, the bell 41, the electrical conductor 42, the inverted cup member 3S, serving as a contact member, the contact member 39, thel standard 40, the ground, theelectrical conductor 46, and the battery. At the same time that the bell 4:1 is caused to ring by the closing of the said circuit, the lifting ot the inverted cup member 38 will permit the steam to escape from the boiler through the pipe 5, the valve chamber 29 and the'pipe 37, thereby immediately reducing the pressure in the boiler.

It will of course be understood that a. whistle may be adjusted to the pipe 37, and this form of construction is shown in Fig. 2 ot' the drawings, in which the whistle 50 is mounted on the pipe 37, connected with the valve chamber 29, the said valve chamber 29a with its valve and other members corresponding in all respects to the valve chamber 29, with its members, as shown in Fig. 1 of the drawings.

lThe valve chamber 29aA to be raised by the pressure in the said open l terminal to .open communication between the terminalv and the atmosphere, a conductor connected with the contact member, and a second contact member disposed over the first contact member with which the first contact member is adapted to engage.

2. A valve chamber having two ports, a valve ior commanding one of the ports,

means t'or holding the valve yieldingly4 closed, a pipe having an open terminal and connected with the other port in the valve chamber, a contact member in the shape ot an inverted cup, mounted on the open terminal and adapted to be raised by pressure y in the said open terminal, an electric conductor connected with the contact member, and a second contact member with which the first contact member .is adapted to engage.

ln testimony whereof l have signed my name to this specification in the presence of two subscribing Witnesses.

RUDOLPH ARTHUR GASCH. W'itnesses:

C. E. JARvIs, T. A. BURLEIGH` 

